/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ws.security.spnego;
import java.security.PrivilegedAction;
import org.ietf.jgss.GSSContext;
import org.ietf.jgss.GSSException;
import org.ietf.jgss.GSSManager;
import org.ietf.jgss.GSSName;
import org.ietf.jgss.Oid;
/**
* This class represents a PrivilegedAction implementation to obtain a (SPNEGO) service ticket from a
* Kerberos Key Distribution Center.
*/
public class SpnegoClientAction implements PrivilegedAction<byte[]> {
private static org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog(SpnegoClientAction.class);
private String serviceName;
private GSSContext secContext;
private boolean mutualAuth;
public SpnegoClientAction(String serviceName) {
this.serviceName = serviceName;
}
/**
* Whether to enable mutual authentication or not.
*/
public void setMutualAuth(boolean mutualAuthentication) {
mutualAuth = mutualAuthentication;
}
public byte[] run() {
try {
if (secContext == null) {
GSSManager gssManager = GSSManager.getInstance();
Oid oid = new Oid("1.3.6.1.5.5.2");
GSSName gssService = gssManager.createName(serviceName, GSSName.NT_HOSTBASED_SERVICE);
secContext = gssManager.createContext(gssService, oid, null, GSSContext.DEFAULT_LIFETIME);
secContext.requestMutualAuth(mutualAuth);
secContext.requestCredDeleg(Boolean.FALSE);
}
byte[] token = new byte[0];
return secContext.initSecContext(token, 0, token.length);
} catch (GSSException e) {
if (log.isDebugEnabled()) {
log.debug("Error in obtaining a Kerberos token", e);
}
}
return null;
}
public GSSContext getContext() {
return secContext;
}
}